Anti-corrosion construction steps of anti-corrosion steel pipes

1. The substrate must be strictly surface-treated. The steel substrate must be trusted and degreased. The phosphating treatment can be determined according to the specific situation.

2. To ensure the necessary coating thickness, the thickness of the anti-corrosion coating must exceed its critical thickness to play a protective role, generally 150μm ~ 200μm.

3. Control the environmental factors such as temperature and humidity at the painting site; the relative humidity varies depending on the species, generally about 65%. There should be no sand or drizzle during outdoor construction. Avoid frosting, dew, rain, and sand on the incompletely cured coating.

4. Control the painting interval time. If the primer is left too long after painting, it will be difficult to attach and affect the overall protective effect. In addition, construction personnel training and construction quality management must also be strengthened. The construction personnel is required to understand the nature, usage, construction points, and technical requirements of the paint.